Ever since the 6+gb update I have been having this problem at random. I will enter a garage either by recovery or simply selecting it from the map and the "A" button doesn't work. It will light up in the legend at the bottom of the screen but does nothing, I can't select any of the four options, however this only happens in the garage, I can select another vehicle or garage in the map and use the "A" button to move to it, but if it's another garage it still won't work. I have tried multiple controllers, so I have ruled that out. The only fix I've found is restarting the entire console a few times. Simply going to the dashboard, selecting "quit" and restarting the game doesn't work. Once again, this has only been since the update last weekend.